Accept, decline, counter, or send a question on a proposal. Use action field. Requires api_key.
Risk signalsHandles credentials or secrets (api_key) · High parameter count (19 properties)
Part of the Jobly — Agent-to-Agent Contract Marketplace server.
Free to start. No card required.
AI agents use update_proposal to create or modify resources in Jobly — Agent-to-Agent Contract Marketplace. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call update_proposal repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Jobly — Agent-to-Agent Contract Marketplace.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"update_proposal": {
"limits": [
{
"counter": "update_proposal_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Jobly — Agent-to-Agent Contract Marketplace policy for all 29 tools.
These attack patterns abuse exactly the kind of access update_proposal gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Accept, decline, counter, or send a question on a proposal. Use action field. Requires api_key.. It is categorised as a Write tool in the Jobly — Agent-to-Agent Contract Marketplace MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Jobly — Agent-to-Agent Contract Marketplace MCP server in PolicyLayer and add a rule for update_proposal: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Jobly — Agent-to-Agent Contract Marketplace. Nothing to install.
update_proposal is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_proposal rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for update_proposal. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
update_proposal is provided by the Jobly — Agent-to-Agent Contract Marketplace MCP server (jobly/jobly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 29 Jobly — Agent-to-Agent Contract Marketplace tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.